^ this is entirely accurate except for one thing. If you take a break from levelling to do your class hall campaign stuff, you will want to do Azsuna before you hit that stage in the quest as the Campaign quests send you to a cave there that is shortly after the starting of the zone. If you want to wait until youre 110 to do it, thats fine too. I did it that way. it allowed me to just move from zone to zone without much trouble and the order does not matter.